In the light-dependent reaction of photosynthesis,the chloroplast is directly involved in which of the following processes?

Photosynthesis is most active in . . . . . . .

Which of the following is the primary electron acceptor from the chlorophyll molecule of Photosystem-$II$?

Read the following statements:
$(a)$ $F_{0}$ part of $ATP$ase is associated with the breakdown of the proton gradient.
$(b)$ $A$ $H^+$ carrier contributes to the creation of the proton gradient.
$(c)$ Movement of electrons in $ETS$ is coupled to the pumping of protons into the lumen.
$(d)$ Formation of $NADPH + H^+$ is related to the creation of the proton gradient.
How many of the above statements are correct?

The wavelength required for the Emerson enhancement effect is........

Emmerson defined 'red drop' as a decline in photosynthesis,also termed the Emmerson effect. It appears at: